Some of the Supermicro chassis use a motherboard standoff that is not the typical stuff you see in PC cases. They have female threads on both ends and attach to the bottom of the case where there is a threaded stud sticking up. Where can one buy more of these? Is there a part number?
The best I can find is this listing on eBay in Czech Rep:
31 pcs Supermicro Motherboard Standoff Spacer kit screws New M/B full kit screw | eBay
The best I can find is this listing on eBay in Czech Rep:
31 pcs Supermicro Motherboard Standoff Spacer kit screws New M/B full kit screw | eBay